Blakeslee DD-8 - Manual (Page 20)

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TROUBLESHOOTING
PROBLEM PROBABLE CAUSES CORRECTIVE ACTION
Pump motor will not start Overload tripped
Clear pump impeller.
Reset relay.
Machine will not start
Unit not turned ON Place power switch in ON position.
Unit not plugged in
Plug unit in to an appropriate power
receptacle.
Power not being supplied to unit Check building circuit breaker or fuses.
No Tank Heat
No power to unit
Place power switch in ON position.
If power indicator lamp lights, unit is
receiving power.
Main gas valve, steam supply valve or
circuit breaker turned off
Check each and return to on position.
Thermostat set too low
Open control box and turn thermostat
knob clockwise until heat comes on.
Steam supply pressure too low
Contact your authorized service
provider.
Thermostat defective
Contact your authorized service
provider.
Faulty gas valve
Contact your authorized service
provider.
Faulty contactor
Contact your authorized service
provider.
Faulty steam solenoid
Contact your authorized service
provider.
Faulty steam trap
Contact your authorized service
provider
Wash tank foaming
Dirty wash water Drain wash tank and refill.
Too much food debris in wash water Improve pre-scrapping.
Incorrect detergent Use only approved detergents.
Poor wash results
Too much food debris in wash water Improve pre-scrapping.
Scrap screens clogged Unclog screens.
Dirty wash water Drain wash tank and refill.
Wash tank temperature too low
Open control box.
Turn thermostat knob clockwise and set
temperature between 150° - 160°F.
No detergent
Refill detergent dispenser.
Add detergent manually.
Pump impeller clogged
Turn off power.
Drain wash tank.
Clear impeller.
Pump running backwards
Check pump rotation.
If incorrect, contact your authorized
service provider.
Wash arms clogged or not turning. Clean and free wash arms.
Improper racking Improve racking technique.